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import os, re
SIZE_UNITS = dict(
b = 1024**0,
k = 1024**1,
m = 1024**2,
g = 1024**3,
t = 1024**4,
)
def parse_size(s):
try:
return int(s)
except ValueError:
pass
for i in SIZE_UNITS.keys():
if s.endswith(i):
try:
return int(s[:-1]) * SIZE_UNITS[i]
except ValueError:
break
raise ValueError("Invalid size specification.")
def get_header(val, headers):
"""
Header keys may be Values, so we have to "generate" them as we try the match.
"""
for k, v in headers:
if len(k) == len(val) and k[:].lower() == val:
return v
return None
def parse_anchor_spec(s):
"""
Return a tuple, or None on error.
"""
if not "=" in s:
return None
return tuple(s.split("=", 1))
def escape_unprintables(s):
s = s.replace("\r\n", "PATHOD_MARKER_RN")
s = s.replace("\n", "PATHOD_MARKER_N")
s = repr(s)[1:-1]
s = s.replace("PATHOD_MARKER_RN", "\n")
s = s.replace("PATHOD_MARKER_N", "\n")
return s
class Data:
def __init__(self, name):
m = __import__(name)
dirname, _ = os.path.split(m.__file__)
self.dirname = os.path.abspath(dirname)
def path(self, path):
"""
Returns a path to the package data housed at 'path' under this
module.Path can be a path to a file, or to a directory.
This function will raise ValueError if the path does not exist.
"""
fullpath = os.path.join(self.dirname, path)
if not os.path.exists(fullpath):
raise ValueError, "dataPath: %s does not exist."%fullpath
return fullpath
data = Data(__name__)
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